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Healthcare workers have welcomed a change in scientific advice on how to protect them from coronavirus.
A document by the government’s scientific advisory group (Sage) says higher grade masks may be needed when caring for Covid patients.
Current guidance says that thinner surgical masks are adequate, outside of intensive care units.
The Department of Health said guidance “is kept under constant review” and protecting NHS staff was a priority.
Some doctors described it as a “crack of light” after more than a year of campaigning for improvements.
A long list of healthcare unions and professional